UK-Bug reports that Tiscali has begun offering a Quality of Service (QoS) guarantee with its broadband (ADSL) Voice-over-IP (VoIP) product:

Lance Spencer, product director for business services at Tiscali, said that traditional leased lines were far too expensive for most companies to use them to connect to remote offices and home workers, but Tiscali's QoDSL service provides an alternative for "low-cost, cost-effective, low-volume data applications".

The QoS promises to refund the monthly service fee, if performance falls below an agreed level.